Power-machine.



Patented July 3|, I900.

D. W. REYNARD.

POWER MACHINE.

(Application filed Aug. 19, 1899.)

(No Model.)

3 Sheats-$haat l.

i I am ,0

A7TORNEYS Patented July 3|, I900.

- 0. w. REYNARD.

POWER MACHINE. (Application filed Aug. 19, 1899.)

3 SheetsShaet 2,

(No Iodel.)

' illllll A TTOHNEYS No. 655,0". 1 Patented July 3|, I900.

D. W. REYNARD.

POWER MACHINE. (Application filed Aug. 19, 1899.)

DAVID W. REYNARD, OF MORRIS, PENNSYLVANIA.

"POWER-MACHINE.

SPECIFICATION forming part of Letters Patent No. 655,011, dated July 31, 1900.

Application filed August 19, 1899. Serial No. 727,801. (No model.)

' Morris, in the county of Tiogaand State of Pennsylvania, have invented a new and Imj proved Power-Machine, of which the following is a full, clear, and exact description.

One object of the invention is to provide a novel, simple, and economic propelling power forbicycles and other machines arranged to be brought into action through the medium of hand or foot levers oppositely disposed and adapted to be alternately forced downward, the intermediate mechanism compelling one lever to rise when the other is depressed.

A further object of the invention is to providea mechanism of the character above men tioned in which dead-centers will be avoided and which will require but little effort on the part of an operator to start and maintain the mechanism in action.

The invention consists in the novel construction and combination of the several parts; as will be hereinafter fully set forth, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a view of one side of the machine, and Fig. 2 is a View of the opposite side of the machine. Fig. 8 is a plan view of the improved machine. Figs. 4, 5, and 6 are detail views of parts of the machine, and Fig. 7 shows the application of my improved power mechanism of a bicycle.

A frame Ais illustrated in the drawings as a support for the mechanism, and this frame is provided with suitable legs 10, although other sustaining devices may be employed. Two parallel shafts 11 and 12 are j ournaled at suitable distances apart in suitable bearings 13, carried by the frame A. The shaft 11 is provided with an "attached gear 1e and the shaft 12 with a gear 15, of corresponding size, in mesh with the gear 14. The shaft 11 is provided with oppositely-directed crank-arms 16 and 16 at its ends, and the shaft 12 is provided likewise with oppositely directed crankarms 17 and 17 at its ends. In one position of the two shafts, due to the connections to be hereinafter described, the crank-arms at one end of the shafts will face each other, while the crank-arms at the opposite end of the said shafts will be directed from each other, as shown in Fig. 3.

The crank-arms at each side of the frame are provided with a toggle connection, and said toggle connection consists of a link B, (shown in detail in Fig. 6,) provided with an eye 18 at one end adapted for pivotal connection with a crank-arm of one of the shafts, the opposite end of the link B being provided with an aperture 19. The crank-arm of the other shaft at the same side of the machine receives an eye 20, formed at the lower end of a second link B, (shown in de-' tail in Fig. 5,) the opposite end 20 of said link B being bifurcated to receive between its members the apertured end of the plain link B, and the bifurcated portion of the link B is provided with apertures 21, adapted to register with the aperture 19 of the said link B. A suitable pivot-pin 22 is passed through said apertures 19 and 21; but the connected ends of the two links B and B at each side of the frameare received in the upper loop portion 23 of a pitman C, the said upper loop portion of the pitman being provided with apertures 24, through which the pivotpin 22 is passed which connects the two links B and B. The lower end of the pitman C is in the form of a single shank 25, and the shank terminates in an eye 26. The eye portion 26 of each pitman is made to enter a slot 27 in a foot or hand lever D, the pitman being pivotally mounted in the said slot, and the lovers D are pivoted to opposite sides of an end portion of the frame A. These levers D are preferably shaped on the lines of a compound curve, as shown in Fig. 1, their foot or handhold portions being in advance of their pivotal connections with the pitman G, as shown particularly in Figs. 1 and 2. Under this arrangement of parts it will be observed that when the levers are alternately depressed one lever will force the other upward, and through the toggle and crank connections between the said levers D and shafts 11 and 12 the said shafts are made to revolve continuously as long as the levers are in operation. Furthermore, it is obvious that there will be practically no dead-center at anypoint in the op eration of the machine. It will also be noted that the pressure of the levers upon the cranks is continuous throughout the revolution thereof, so that full power may be brought to bear upon the cranks for nearly five-eighths of their revo1ution,-if required. g As shown in Fig, 7 the shafts 1 1 and 12 of the gears 14 and 15 are journaled in bearings 13 upon the rear stays 10 of the frame, said stays being connected at their rear ends with the rear fork 10 in the ordinary mannerand also having a connection at their central portion with the forked seat-mast 10. The front ends of the rear stays 1O are connected by; suspension-rods 10 with a brace 10?, extending from the lower end of the head 10 110 the top of the seat-mast fork. The levers D are fulcrumed on said rear stays 10 The rearwheel sprocket 29 is driven from the rear gear 14 by an intermediate toothed Wheel 30, fixedly supported on one of the rear stayslO.

IIaving thusdescribed invention,- I}

claim as new and desire .to secure by Letters Patent-- The combination of a frame, two intermeshing gears, journaled thereon, two cranks carried by each gear on opposite sides thereof and arranged at an angle to .each other, tog

VV i'tnesses:

JOsE PH W. Ron, EDWARD H OWLETT. 

